Wheel antislipping attachment



w. A. BIGGS. I I WHEEL ANTISUPPIN G ATTACHMENT.

- APPLICATION FILED JULY i7, 1919.

Patented May 30, 1922.

units-n stars-s.

PATENT OFFIC E- WILLIAM A. BIGGS, OF MERIDIAN, MISSISSIPPI.

WHEEL ANTISLIPZPING JUIWI?ACIEIIWIEIISPI.

Specification of LettersPatent.

Patented May 30, 1922;

Application filed July 17, 1919. Serial No. 311,417.

To all whom it may 00mm.-

Be it;known that 1,. lVILLIA M, A. Bless, citizen of' the United States,

Statebof Mississippi, have invented certain new, and useful, Improvements in Wheel for. attachment to a vehicle tire .to enable-a.

machine under its. own tractionfoemerge. poor tI'fiCtlOIl; road out of mud holes, or other surfaces, but asfar. as I am aware, these devices, generally known as mud hooks consist OfrIIlGtfLlllC structures andare adapt? ed to. be attached to a tr action surfaces.- has not been satisfactory, it having been found that the metallic body portions serve to cut or injure the tire, while the said bodies also do not possess su-flicient yieldable. characteristics to enablethe attachment to readily,

conform to the shape of the tire.

ltis an object ofthe present invention tov provide an attachment for vehicle tires overcoming the difiiculties encountered .in, the. use. oftl 'e-prior art devices,, and consisting of a, of vulcanized rubber.

body portion composed having incorporated therein a reinforcing. fabric, which body is fashioned to fit the tire and conform to the shape, ofitsouter surface. wardly projecting traction ribs preferably vulcanizedtherewith so that the entire attachment is pliable-and yieldable and may be readily applied to any tire and conform to the shape thereof. By making the device of rubber, the. tread portion injured upon lts application thereto, and when the attachment is applied to a tire, the

same being of a pliable nature will'readily conform to the contour thereof irrespective of the size of the tire, the rubber, of course,

ossessing inherent qualities serving to cause the attachment to cling to a tire when the same. is applied thereto.

The invention in a more specific aspect residing at Mendian, in the county of liauderdale, and.

being had to a traction device.

tire and provided .with. The use; of. these devices,

The body is also provided without.

of a tire is notcomprises an antislippingattachment of this g neral, ha ct r hav ng a. it b e dy portlon composed of relatively hard vulcaned. r bber,

v formed on its outer surface; a with, a ser es of, spaced projecting traction ribsgof amater alwldth, being adapted when the-devicevisappliedto atire toengage a slippery; or poor road bed to enable a machine .under its own power to emerge from.

mud holes or other. bad traction surfaces.

Thetractionribs are'preferably molded with thebody ofthe device so that the entire articleis of a ,unitary construction and readily conforms to the shape of a tire when applied thereto, additionalv means being. preferably employed-consisting of attaching chains for securing the; device i -place.

In the: accompanying. drawings, 1 have shown: and described the preferred embodiment ofithe invention, butit will, of course,

vbeund'erstood that many changes can be made withoutdeparting from the same.

In the. drawings Fig. 1 isa side elevation of the attachment applied to asection .of avehicle wheel.

Fig. 2 is a; transverse vertical section through the .wheel rim and attachment.

Fig. 3, is a longitudinal section through a portion of the attachment.

Fig. 4:.lS afragmentary transverse vertical section through the attachment showing a modified formof means for attaching the device to .avehicletire,

Referring. now more. particularly to the drawings wherein like. reference characters indicate corresponding,parts, the numeral 1 designatessuitable. wheel spokesbeing connected withakwheel .felly and rim 2 receiving the tire 3.. This, tire may be of a pneumatic' orsolid formation, butfor the purpose of illustration it is shown as a pneumatic tire.

The. anti-slipping device 4 consists of a body part 5 of substantially semi-circular cross section, being composed of vulcanized rubber, having; embedded or incorporated of a tapering formation.

' handle must be grasped and the surface of gaged therefrom "material extent As a means for securing the device to a vehicle tire, plates 9 are molded or vul canized within the body at one side having apertures 10 therein receiving a hook portion of a chain 11 passing around the rim 'of the vehicle, while the opposite end of the chain is formed with a hook portion '12 having an eye 13 near one end receiving the opposite end of the chain, the fastenlng hook 12 is also formed with an enlarged eye portion 14 adapted to be slipped over the hooked end 15 of a plate 16 that is vulcanized in the opposite side of the body 4. The hooked end 15 of this plate is formed with a bill 17 so as to normally prevent the fastening hook 12 from becoming disenwhen the device is used, it being observed that the fastening hook 12 is formed with an extending part or handle 18 by which the enlarged eye portion 15 is slipped over the bill of the hook when the device is to be attached to a tire and this pulled outwardly slightly to enable the device to be uncoupled from the wheel. The plates 9 and 16 are shown as being disposed at each end of the traction device, but obviously any number of plates necessary'can bevulcan,- ized in the body to securely hold the anti slipping device in place.

To prevent creeping of the device after it has been applied to a'tire, the inner sur face of the body 5 is provided with slightly raised portions 19 that are adapted to engage the surface of the tire and these raised. parts frictionally engaging the tire surface to a prevent a relative creeping of the anti-slipping device, it being understood that the body of the device is composed of vulcanized rubber possessing inherent elastic qualities causing the same to yieldably cling to a tire when'it has been applied thereto, thereby bringing the roughened portions 19 into firm contact with the tire and preventing creeping.

In Fig. 1 of the drawings I have shown a slightly modified form of the means for attaching the device to the vehicle tire. In this form of the invention the plate 9 is formed with a hooked end 20 and a spring 6 of the body passing reventin sli in or plate 21 is secured to the plate 9 and the end thereof is adapted to normally engage the hooked end 20. The plate 16 also has a spring plate 22 secured thereto and this spring plate will normally engage the hooked end'15, In this modified form of the invention each end of the chain 11 is provided with a fastening hook 12 and when the fastening hooks are applied to the hooks 15 and 20 of the plates 16 and 9, respectively, the spring plates 22 and 21 will yield and then snap back into postion to hold the hooks 12 in position against accidental displacement.

The device is primarily intended for apvehicle are in a mud hole, or on a'very poor traction surface and when in use the traction ribs 7 upon a rotation of the wheel are driven into or engage the muddy surface, a spinning of the wheels to enable the vehicle tomove forward under its own power. The flat sides 8 of the traction ribs upon the rotation of the wheel are embedded in the soft or muddy earth presenting large areas engaging the earth to enable the machine to move for ward under this traction by its own power and a spinning of the wheel is of course prevented.

Should a very bad traction surface be encountered more than one of the devices could be applied to a wheel if this is necessary, but in most instances it will be found thatthe use of a single attachment Will suf- I claim is 1. An attachment !()f the character described comprising a body portion consisting of vulcanized rubber having fabric embedded therein, said body portion being ofa curved formation to be applied to a vehicle tire and conform to the surface thereof, and spaced integral traction ribs disposed radially of the body,

Having thus described the invention, what I said ribs having a straight wall on one side, and a bevelled Wall on the other.

2. In combination with an anti slipping attachment for wheels having perforated plates secured to one edge and hooks to the other edge, of means for securing the attachment to the wheel, said means compris-i ing chains having a hook on one end to engage the openings on the plates on one edge of the body and eyes on the opposite 1 ends to engage the hooked ends of the plates on the opposite edge of the body, said eye portions having an extension forming a handle for engaging and disengaging the eyes from the hooks.

In combination with an anti-slipping attachment for wheels having perforated plates secured to one edge and hooks to the other edge, of means for securing the attachment to the Wheel said means comprising chains having a r to engage the openings in the plates on one edge of. the body and eyes on the opposite ends to engage the hooks of the plates on the opposite edge of the body, said eye portions having an offset to receive a link of the chain and an extension forming a handle for engaging and disengaging the eye from hook on one end the hook.

In testimony whereof I hereunto afiix my signature in the presence of two Witnesses.

' WILLIAM A. BIGGS. Witnesses:

M. L. MoNAIR, C. E. MoCALMoN'r; 

